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Numbers

title: Python Numbers author: Juma Shafara date: "2023-11" date-modified: '2024-11-25' description: What are the different types of Python Numbers keywords: [python numbers, number types, number arithmetics, number methods]

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Numbers

Table of Contents

In this notebook, you will learn the following

  • Number types
  • Number arithmetics
  • Number methods

In python, there are three types of numbers

  • Integer - `int`
  • Floating Point - `float`
  • Complex - `complex`

Types

Integer

An integer is a number without decimals

# Python Numbers: intgers

a = 3
b = 4
number = 5

print('a:', a)
print('b:', b)
print('number:', number)

a: 3
b: 4
number: 5

Floating Point

A floating point number of just a float is a number with decimals

# Python Numbers: floating point
a = 3.0
b = 4.21
number = 5.33

print('a:', a)
print('b:', b)
print('number:', number)

a: 3.0
b: 4.21
number: 5.33

Complex

A comple number is an imaginary number. To yield a complex number, append a j o J to a numeric value

# Python Numbers: complex

a = 3j
b = 5.21j
number = 4 + 5.33j

print('a:', a)
print('b:', b)
print('number:', number)

a: 3j
b: 5.21j
number: (4+5.33j)

Number Arthmetics

Below are some of the basic arithmetic operations that can be performed with numbers

# Python Numbers: arthmetics

summation = 4 + 2
print('sum:', summation)

difference = 4 - 2
print('difference:', difference)

product = 4 * 2
print('product:', product)

quotient = 4 / 2
print('quotient:', quotient)

sum: 6
difference: 2
product: 8
quotient: 2.0

Number Methods

Number methods are special inbuilt functions used to work with numbers

# sum() can add many numbers at once
summation = sum([1,2,3,4,5,6,7,8,9,10])
print(summation) # 55

55


# round() rounds a number to a 
# specified number of decimal places
pi = 3.14159265358979
rounded_pi = round(pi, 3)

print('PI: ', pi) # 3.14159265358979
print('Rounded PI: ', rounded_pi) # 3.142

PI:  3.14159265358979
Rounded PI:  3.142


# abs() returns the absolute value of a number
number = -5
absolute_value = abs(number)
print(absolute_value) # 5

absolute value of -5 is 5


# pow() returns the value of 
# x to the power of y
four_power_two = pow(4, 2)
print(four_power_two) # 16

16


# divmod() returns the quotient and 
# remainder of a division
quotient, remainder = divmod(10, 3)
print(quotient) # 3
print(remainder) # 1

Quotient: 3
Remainder: 1

Exercise

Write a program to assign the number 64.8678 to a variable named “number” then display the number rounded to two decimal places.

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